Method check

java/org/apache/catalina/core/AsyncContextImpl.java:645–660

()

    }

    private void check() {
        Request request = this.request;
        if (hasBeenRecycled.get() || request == null) {
            // AsyncContext has been recycled and should not be being used
            throw new IllegalStateException(sm.getString("asyncContextImpl.requestEnded"));
        }
        // Local copy of request (and any other local copies taken before the check above) must be valid.
        if (hasOnErrorReturned.get() && !request.getCoyoteRequest().isRequestThread()) {
            /*
             * Non-container thread is trying to use the AsyncContext after an error has occurred and the call to
             * AsyncListener.onError() has returned. At this point, the non-container thread should not be trying to use
             * the AsyncContext due to possible race conditions.
             */
            throw new IllegalStateException(sm.getString("asyncContextImpl.afterOnError"));
        }
    }

    private static class DebugException extends Exception {
        @Serial